我如何排序字典顺序一个ArrayList？ [英] How do I sort an ArrayList lexicographically?

问题描述

我想那个排序重新present卡值的字符串的ArrayList。所以，有些卡包含字母（王）和一些只包含包含数字（7）的字符串。我知道使用Collections.sort，但它只是排序包含字母的字符串。我如何获得该ArrayList以数字和字母顺序进行排序？

I am trying to sort an ArrayList of Strings that represent card values. So, some cards contain letters ("King") and some contain Strings containing only a number ("7"). I know to use Collections.sort, but it only sorts Strings that contain letters. How do I get the ArrayList to be sorted by number as well as alphabetically?

编辑：对不起，我不能一直十分重视，当我看着排序。排序工作正常，我一定是刚刚被这样一个事实：10将之前2.感谢来揭去

Sorry, I must not have been paying much attention when I looked at the sorting. The sort works correctly, I must have just been thrown off by the fact that a 10 will come before a 2. Thanks

推荐答案

没有， Col​​lections.sort 将整理一切，用统一code序号词典作为对比这就是<一个行为href=\"http://java.sun.com/javase/6/docs/api/java/lang/String.html#compareTo%28java.lang.String%29\"><$c$c>String.compareTo. 7会来王面前，10会2了。

No, Collections.sort will sort everything, using an Unicode ordinal lexicographic comparison as that's the behaviour of String.compareTo. "7" will come before "King", and "10" will come before "2".

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